Source: DragonFlyBSD

diff -ur xlispstat-3-52-20.orig/lowess.c xlispstat-3-52-20/lowess.c
--- xlispstat-3-52-20.orig/lowess.c	2000-11-25 01:17:38.000000000 +0200
+++ xlispstat-3-52-20/lowess.c	2009-08-10 19:34:54.000000000 +0300
@@ -12,7 +12,7 @@
 /* forward declarations */
 static double pow2 P1H(double);
 static double pow3 P1H(double x);
-static double fmax P2H(double, double);
+/* static double fmax P2H(double, double); */
 static VOID sort P2H(double *, int);
 static VOID lowest P11H(double *, double *, int, double, double *,
                         int, int, double *, int, double *, int *);
@@ -20,7 +20,7 @@
 
 static double pow2 P1C(double, x) { return(x * x); }
 static double pow3 P1C(double, x) { return(x * x * x); }
-static double fmax P2C(double, x, double, y) { return (x > y ? x : y); }
+/* static double fmax P2C(double, x, double, y) { return (x > y ? x : y); } */
 
 int lowess P9C(double *, x, double *, y, int, n, double, f, int, nsteps, double, delta,
                double *, ys, double *, rw, double *, res)